The more obviously hazardous but more jaw-dropping of the two routes across the mountain, the upper mountain pass offers some awe-inspiring views of both sides of the island but is a much tougher trek. It features a high incline, slippery snow and ice patches, as well as some potentially precipitous drops. The upper mountain pass is also home to a herd of mountain goats and is the nesting site for a few species of migratory birds.

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